Fellas: Just an FYI: with better reading glasses I determined my heater core leak was indeed at the hot water valve assembly. Joe Suchy referred me to Joe Hudacek in Wisconsin, 715.392.6169, www.heatervalves.net (he may be on Gary's list of vendors, I never checked that). If not, he should be. He has some inventory and will also re-build your old heater valve assembly.Its my understanding you can also buy the seal kit for these at NAPA and do it yourself. Thanks again for the posts on this matter. Donny, 64 Belvedere. ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.